GE t60 Instruction Manual page 261

5 SETTINGS
FLEXLOGIC OPERAND
PH DIST Z1 PKP AB
FLEXLOGIC OPERAND
PH DIST Z1 PKP BC
FLEXLOGIC OPERAND
PH DIST Z1 PKP CA
FLEXLOGIC OPERANDS
PH DIST Z1 SUPN IAB
PH DIST Z1 SUPN IBC
PH DIST Z1 SUPN ICA
OPEN POLE OP **
** D60, L60, and L90 only. Other UR-series models apply regular current seal-in for zone 1.
from the open pole element (D60, L60, and L90 only)
FLEXLOGIC OPERAND
OPEN POLE OP
FLEXLOGIC OPERAND
PH DIST Z2 PKP AB
OR
FLEXLOGIC OPERAND
PH DIST Z2 PKP BC
OR
FLEXLOGIC OPERAND
PH DIST Z2 PKP CA
OR
from the trip output element
FLEXLOGIC OPERAND
TRIP Z2 PH TMR INIT
For phase distance zone 2, there is a provision to start the zone timer with other distance zones or loop the pickup
flag to avoid prolonging phase distance zone 2 operation when the fault evolves from one type to another or
NOTE
migrates from the initial zone to zone 2. Desired zones in the trip output function should be assigned to accomplish
this functionality.
GE Multilin
SETTING
PH DIST Z1 DELAY
T
PKP
0
T
PKP
0
T
PKP
0
AND
AND
AND
Figure 5–58: PHASE DISTANCE ZONE 1 OP SCHEME
TIMER
AND
0 ms
OR
20 ms
TIMER
0 ms
AND
OR
20 ms
TIMER
0 ms
AND
OR
20 ms
Figure 5–59: PHASE DISTANCE ZONE 2 OP SCHEME
T60 Transformer Protection System
5.6 GROUPED ELEMENTS
AND
OR
FLEXLOGIC OPERANDS
AND
PH DIST Z1 OP
OR OR
AND
OR
FLEXLOGIC OPERANDS
PH DIST Z1 OP AB
PH DIST Z1 OP BC
PH DIST Z1 OP CA
SETTING
PH DIST Z2 DELAY AND
T
PKP
0
SETTING
AND
PH DIST Z2 DELAY
T
PKP
0
SETTING
AND
PH DIST Z2 DELAY
T
PKP
0
837017A8.CDR
FLEXLOGIC OPERAND
PH DIST Z2 OP AB
FLEXLOGIC OPERAND
PH DIST Z2 OP BC
FLEXLOGIC OPERAND
PH DIST Z2 OP CA
FLEXLOGIC OPERAND
PH DIST Z2 OP
OR
837036A1.CDR
5-129
5